EP1927482A1 - Apparatus for breaking the seal between a tyre bead of a tyre and a wheel rim of a wheel - Google Patents
Apparatus for breaking the seal between a tyre bead of a tyre and a wheel rim of a wheel Download PDFInfo
- Publication number
- EP1927482A1 EP1927482A1 EP07254624A EP07254624A EP1927482A1 EP 1927482 A1 EP1927482 A1 EP 1927482A1 EP 07254624 A EP07254624 A EP 07254624A EP 07254624 A EP07254624 A EP 07254624A EP 1927482 A1 EP1927482 A1 EP 1927482A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seal
- breaking device
- wheel
- mounting frame
- connector means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
- B60C25/01—Apparatus or tools adapted for mounting, removing or inspecting tyres for removing tyres from or mounting tyres on wheels
- B60C25/05—Machines
- B60C25/125—Machines for only breaking the beads
- B60C25/13—Machines for only breaking the beads acting axially on a part of the bead or side wall only at localised regions of the bead or side wall
Definitions
- This invention relates to apparatus for breaking the seal between a tyre bead of a tyre and a wheel rim of a wheel.
- apparatus for breaking the seal between a tyre bead of a tyre and a wheel rim of a wheel which apparatus comprises a mounting frame for mounting a seal-breaking device, the mounting frame comprising first connector means for enabling the mounting frame to be connected to the wheel, and second connector means for enabling the seal-breaking device to be connected to the mounting frame, and the apparatus being such that the seal-breaking device is connectable to the mounting frame such as correctly to locate the seal-breaking device with respect to the wheel rim and allow the seal-breaking device to break the seal by displacing the tyre bead from the wheel rim irrespective of differing wheel formations forming part of different types of wheel.
- the apparatus of the present invention is advantageous in that it is able correctly to locate the seal-breaking device with respect to the wheel rim, and allow the seal-breaking device to break the seal by displacing the tyre bead from the wheel rim irrespective of the location of wheel formations on the wheel.
- Various types of wheel especially commercial vehicle wheels, have various types of wheel formations which are on the wheel and which often obstruct the use of the known types of apparatus.
- many commercial vehicle wheels are such that one of the wheel formations is a tapered circumference of the vehicle wheel rim.
- the apparatus of the present invention is especially useful for displacing tyres from such commercial vehicle wheels and the tapered circumference of the wheel rim does not present a problem.
- many commercial vehicle wheels have a continuous inner ridge, hump or groove around the wheel rim to retain the tyre bead seating when the tyre is punctured, impacted or deflated.
- the apparatus of the present invention may also be used on wheels designed to have a low pressure type tyre system, for example having the above mentioned inner ridge, hump or groove.
- the ridge, hump or groove may be continuous, interrupted or a combination thereof.
- the ridge, hump or groove is usually on the side of the wheel to which the valve is located, which is usually the mounting flange or nave side of the wheel.
- Such wheels are often known as EVA (external valve aperture) or EVH (external valve hole) wheels.
- the apparatus of the present invention may be used on this type of commercial wheels, whereas the known types of apparatus often encounter problems. More specifically, the shape of the apertures provides primary location for the seal-breaking device or adaptor within the apparatus, especially with regard to pulling out of the front of the apparatus when the seal-breaking devices are under load. The shape of the apertures is also relevant in that the shape provides side-to-side location as well as fore-and-aft location.
- the apparatus of the present invention is advantageous in that it is usually able to be secured to the wheel without the need for fixing bolts.
- the apparatus of the present invention may be used with most common types of 8 or 10 stud mounted wheels, for example commercial wheels or wheels of other vehicles.
- the apparatus of the present invention may also be use with 6 stud mounted wheels.
- the apparatus of the present invention may be such that the seal-breaking device is connectable to the mounting frame at a similar depth with respect to the wheel rim and thus at a different depth with respect to the first connector means.
- the second connector means may comprises locator means which locates the seal-breaking device.
- the locator means may be plurality of spaced apart locator formations.
- the locator formations may be, for example, apertures or lugs. Other types of locator formations may be employed.
- the locator means may alternatively be a single locator formation.
- the locator formation may be, for example, an aperture or a lug. Other types of locator formation may be employed.
- a seal-breaking device with a threaded member of sufficient length may be employed to achieve the desired breaking of the seal.
- first connector adaptor means may be employed to provide different positions by which the relationship of the second connector means with the wheel rim is able to be maintained.
- the apparatus may be one in which the first connector means is a direct connection to the wheel.
- the apparatus may be one in which the first connector means is an indirect connection to the wheel, and in which the apparatus includes first adaptor means for providing the indirect connection.
- first adaptor means may be employed providing the required indirect connection is achieved.
- the apparatus may be one in which the second connector means provides a direct connection to the seal-breaking device.
- the apparatus may be one in which the second connector means provides an indirect connection to the seal-breaking device, and in which the apparatus includes second adaptor means for providing the indirect connection.
- the second adaptor means may be employed providing the required indirect connection is achieved.
- the second connector means When the second connector means is an indirect connection to the seal-breaking device, then the second connector means may be shaped to allow movement of the second adaptor means relative to the mounting frame so that unequal or point loads are able to be avoided or reduced during use of the apparatus.
- the second adaptor means may be a trunion plate assembly.
- the apparatus of the present invention may include a retaining member for retaining the second adaptor means in position.
- the retaining member may be a retaining bar or any other suitable and appropriate device.
- the apparatus may advantageously include the first adaptor means for providing the indirect connection of the first connector means to the wheel.
- the first adaptor means may allow a range of attachment fittings to be accommodated.
- the use of the first adaptor means may also enable the apparatus of the invention to be used on other types of wheels, for example agricultural machine wheels, or other low pressure wheels, especially those having the above mentioned continuous ridge or hump around the wheel rim to retain the tyre bead seating.
- the apertures are in-line apertures.
- Other layouts for the apertures may however be employed if desired.
- the apparatus is one in which the mounting frame comprises a pair of spaced apart side plates, and in which a front edge of each side plate has the apertures.
- the side plates may be provided with holes for reducing the weight of the side plates.
- the mounting frame may have an open front which faces the wheel rim at the point where the seal is to be broken during use of the apparatus.
- the mounting frame may have a rear wall comprising a plurality of cross members, each cross member having a cross member formation which forms part of the second connector means.
- the cross member formation may comprise a slot for receiving an arm part of the seal-breaking device.
- the apparatus may include a retaining bar along an outer face of each one of the side plates, the retaining bar being for helping to retain the seal-breaking device in the apertures in the side plates.
- the retaining bar may also provide added strength for the apparatus.
- the apparatus of the present invention may be one in which the mounting frame is of other constructions to those mentioned above.
- the frame may have side plates which are not provided with holes and/or a different type of rear wall may be employed.
- a solid construction may be employed in which case there would not be any side plates but simply sides of the mounting frame.
- the apparatus may be one in which the first connector means comprising a slot arrangement for receiving a wheel flange of the wheel.
- the slot arrangement may comprise a pair of slots provided in each of the side plates.
- the first connector means may include a transverse plate which extends between the side plates and which may locate with a wheel flange or is used as an attachment point or locator for a wheel flange, first connector means adaptors, spacers, or force transfer members.
- the first connector means adaptors may be provided with a hole or other suitable retaining means for securing the apparatus, a force transfer plate, or adaptors to the wheel flange.
- the apparatus of the present invention may include receiving means for receiving a force transfer member for transferring twisting forces generated during use of the apparatus.
- the force transfer member may be a force transfer plate. Other types of force transfer member may be employed.
- the receiving means may be one or more of holes, slots, lugs, notches, pins or other suitable and appropriate devices or formations.
- the apparatus of the invention may include the seal-breaking device. Any suitable and appropriate seal-breaking device may be employed, however powered.
- the seal-breaking device comprises a threaded member which is manually operated in use of the apparatus, and a pressure plate at one end of the threaded member, the threaded member being such that when it is manually screwed through a mounting part of the seal-breaking device, then the pressure plate exerts pressure on the tyre bead and breaks the seal.
- the apparatus of the invention may include articulation control means.
- the articulation control means may be a bolt or a bi-directional thrust member and may act upon elements or parts of a force transfer frame which is flexibly located upon and is typically part of the second adaptor means.
- the apparatus of the invention may be one in which the mounting frame comprises two or more modular interconnectable sections.
- apparatus 2 for breaking the seal between a tyre bead 4 of a tyre 6 and a wheel rim 8 of a wheel 10.
- the apparatus 2 comprises a mounting frame 12 for mounting a seal-breaking device 14.
- the mounting frame 12 comprises first connector means 16 for enabling the mounting frame 12 to be connected to the wheel 10.
- the mounting frame 12 also comprises second connector means 18 for enabling the seal-breaking device 14 to be connected to the mounting frame 12.
- the second connector means 18 comprises a plurality of spaced apart apertures 20.
- Each aperture 20 is for enabling the seal-breaking device 14 to be connected to the mounting frame 12 at a similar depth with respect to the wheel rim 8, and thus at a different depth with respect to the first connector means 16. This enables the correct location of the seal-breaking device 14 with respect to the wheel rim 8. This also allows the seal-breaking device 14 to break the seal by displacing the tyre bead 4 from the wheel rim 8 irrespective of differing wheel formations forming part of different types of wheel.
- the apparatus 2 is thus able to take into account of the fact that wheels come in a variety of designs with various formations such for example a continuous ridge or hump around the wheel rim 8 to retain the tyre bead seating, or a ridge on the side of the wheel 10 away from the nave and the valve of the wheel 10, or mounting flange positions inset, or on or near a centre line of the wheel 10.
- the apparatus 2 of the present invention is able to be used with wheels having these different formations, whereas many types of known apparatus are not suitable for wheels having one or more of the various types of formations such as those mentioned above.
- the first connector means 16 is most clearly shown in Figure 2 .
- the first connector means 16 is a direct connection to the wheel 10.
- the first connector means 16 may be an indirect connection to the wheel 10, in which case the apparatus 2 may include first adaptor means for providing the indirect connection.
- the second connector means 18 provides an indirect connection to the seal-breaking device 14.
- the second connector means may provide a direct connection to the seal-breaking device 14, in which case the apparatus 2 may include second adaptor means for providing the indirect connection.
- the second connector means may then advantageously be shaped to allow movement of the second adaptor means relative to the mounting frame 12, so that unequal or point loads are able to be avoided or reduced during use of the apparatus 2.
- the second adaptor means may be a trunion plate assembly or any other suitable and appropriate device.
- a retaining member may be employed for retaining the second adaptor means in position.
- the retaining member may be a retaining bar or any other suitable and appropriate device.
- the apertures 20 are in-line apertures 20.
- the mounting frame comprises a pair of spaced apart side plates 22, 24. A front edge 26 of each side plate 22, 24 has the apertures 20.
- the side plates 22, 24 are provided with holes 28 for reducing the weight of the side plates, 22, 24.
- the holes 28 may be omitted in an alternative design of the apparatus 2.
- the apertures 20 are shaped as shown so that they have a neck part 30 which opens out into a larger part 32.
- the larger part 32 has a substantially flat lower edge 34 and a curved upper edge 36.
- the mounting frame 12 has an open front 38 which faces the wheel rim 8 at the point where the seal is to be broken during use of the apparatus 2.
- the mounting frame 12 has a rear wall 40 comprising a plurality of cross members 42.
- Each cross member 42 has a formation 44 which forms part of the second connector means 18.
- the cross members 42 receive the counter-force set up by the seal-breaking device 14 when the apparatus of the invention is in use.
- the cross members 42 form structural elements.
- the cross members 42 take the counter-force generated by the seal-breaking device 14, as well as providing a visible second securing point for the seal-breaking device 14 and adaptors.
- the numbers of cross members 42 is at least as many as there are sets of apertures 20.
- the formation 44 comprises a slot 46 for receiving an arm part 48 of the seal-breaking device 14, or a second adaptor.
- the arm part 48 is held in position by a pin 50 as shown in Figure 1 .
- the arm part 48 may be part of a second adaptor means in the form of a trunion assembly.
- FIG. 2 shows a mounting frame 52 which is the same as the mounting frame 12 except that the mounting frame 52 is provided with a retaining bar 54 along an outer face 56 of each one of the side plates 22, 24.
- the first connector means 16 comprises a slot arrangement 58 comprising a pair of slots 60, 62 provided one in each of the side plates 22, 24 respectively.
- the first connector means 16 also comprises a transverse plate 64 which extends between the side plates 22, 24.
- the transverse plate 64 has an aperture 66 for securing the apparatus, a force transfer plate, or adaptor to be the wheel flange.
- the slotted-type first connector means 16 is ideal for use on 8 - 10 stud commercial vehicle wheels.
- Figure 1 shows the apparatus 2 having a seal-breaking device 14 comprising a threaded member 68 which is manually operated by means of a nut 70 and an appropriate spanner or other turning device (not shown).
- the seal-breaking device 14 has a pressure plate 72 at an end of the threaded member 78 opposite the nut 70.
- the pressure plate 72 is pivotally mounted by a pivot 74.
- the threaded member 68 screws through a threaded aperture 76 in a bar 78 which extends between a pair of side plates 80, 82.
- a bar 84 helps to keep the side plates 80, 82 apart.
- Each side of the seal-breaking device 14 is provided with a crescent-shaped member 86 which locates in its appropriate aperture 20 as shown in Figure 1 .
- the seal-breaking device 14 is securely located by the members 14 to the mounting frame 12 as pressure is exerted by the pressure plate 22 in order to break the seal between the tyre bead 4 and the wheel rim 8. This pressure increases as the threaded member 68 is screwed through the bar 78.
- Figure 3 shows the apparatus 52 of Figure 2 but with the first connector means 16 removed and replaced by lugs 85 with holes 87.
- the lugs 85 and the holes 87 are for receiving adaptor means.
- FIG 4 shows the mounting frame 12 of Figure 1 with a seal-breaking device 88 which is a known seal breaking device.
- the seal breaking device 88 has a threaded member 90 which screws through a threaded aperture 92 in a bar 94.
- the bar 94 extends between side plates 96, 98.
- the side plates 96, 98 are provided with apertures 100 for lightening the weight of the side plates 96, 98 and therefore the entire seal-breaking device 88.
- the side plates 96, 98 are also kept apart by a bar 102.
- the threaded member 90 has an aperture 104 for receiving a bar 106 which enables the threaded member 90 manually to be screwed into and out of the threaded aperture 92 in the bar 94.
- the threaded member 90 terminates at its end remote from the aperture 104 in a pressure plate 108 which is more curved than the pressure plate 72 in the seal-breaking device 14.
- Figure 5 shows the mounting frame 12 provided with a seal-breaking device 110.
- the seal-breaking device 110 has a threaded member 112 having a nut 114 at one end for enabling the threaded member 112 manually to be screwed through a threaded aperture 116 in a radially extending bar 118.
- the threaded member 112 applies force to a pressure plate 128 and tyre bead.
- the bar 118 is located on a plate 120 by a hand nut 122 being screwed over a threaded member 124.
- a captive bolt 126 or similar is used to control the arc of the plate 120 and the member 86 within the slot or aperture 20 by reacting with a force transfer frame 127.
- the bolt 126 or a similar bi-directional thrust member acts to provide articulation control, and may typically be part of the second adaptor means.
- This type of seal-breaking device 110 has no inherent facility to adjust the angle of presentation or to follow the tapered wheel profile. This type of seal-breaking device 110 may benefit from angle adjustments provided by the captive bolt 126 acting on a connector bar bridging force transfer claws on the force transfer frame 127.
- the apparatus as shown in the drawings may include receiving means for receiving a force transfer member for transferring twisting forces generated during use of the apparatus.
- the force transfer member may be a force transfer plate.
- the receiving means may be one or more of holes, slots, lugs, notches or pins. If desired, the apparatus of the invention may have only one locator formation, for example one locator aperture or lug.
- the seal-breaking device shown in the drawings can be used but with a longer threaded member than the illustrated threaded members 68, 90, 112. This longer threaded member would enable reaching down to the tyre/wheel interface.
- a single locator formation may be employed but with the apparatus using first connector adaptor means to provide the different positions by which the relationship of the second connector means with the rim is maintained.
- the mounting frame is a single entity, which may be provided with adaptors and add-on members to enable the mounting frame to function as shown.
- the mounting frame used in the apparatus of the present invention may be made in two or more modular interconnectable sections which can be built up into a mounting frame of the desired length.
- Such a mounting frame made of two or more modular interconnectable sections would be able to have all the features, versatility and advantages of the illustrated single entity mounting frame, whilst utilising the same principles of quick assembly and force transfer within its own assembly means by which the two or more modular interconnectable sections are connected together.
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Abstract
Description
- This invention relates to apparatus for breaking the seal between a tyre bead of a tyre and a wheel rim of a wheel.
- There are various known types of apparatus for breaking the seal between a tyre bead of a tyre and a wheel rim of a wheel. The known types of apparatus often cause problems when the wheel is a commercial vehicle wheel. The known types of apparatus for use with a commercial vehicle wheel are often fiddly, inadequate, noisy, expensive, and dependent upon an external power source.
- It is an aim of the present invention to reduce the above mentioned problems.
- Accordingly, in one non-limiting embodiment of the present invention there is provided apparatus for breaking the seal between a tyre bead of a tyre and a wheel rim of a wheel, which apparatus comprises a mounting frame for mounting a seal-breaking device, the mounting frame comprising first connector means for enabling the mounting frame to be connected to the wheel, and second connector means for enabling the seal-breaking device to be connected to the mounting frame, and the apparatus being such that the seal-breaking device is connectable to the mounting frame such as correctly to locate the seal-breaking device with respect to the wheel rim and allow the seal-breaking device to break the seal by displacing the tyre bead from the wheel rim irrespective of differing wheel formations forming part of different types of wheel.
- The apparatus of the present invention is advantageous in that it is able correctly to locate the seal-breaking device with respect to the wheel rim, and allow the seal-breaking device to break the seal by displacing the tyre bead from the wheel rim irrespective of the location of wheel formations on the wheel. Various types of wheel, especially commercial vehicle wheels, have various types of wheel formations which are on the wheel and which often obstruct the use of the known types of apparatus. For example, many commercial vehicle wheels are such that one of the wheel formations is a tapered circumference of the vehicle wheel rim. The apparatus of the present invention is especially useful for displacing tyres from such commercial vehicle wheels and the tapered circumference of the wheel rim does not present a problem. Also by way of example, many commercial vehicle wheels have a continuous inner ridge, hump or groove around the wheel rim to retain the tyre bead seating when the tyre is punctured, impacted or deflated. The apparatus of the present invention may also be used on wheels designed to have a low pressure type tyre system, for example having the above mentioned inner ridge, hump or groove. The ridge, hump or groove may be continuous, interrupted or a combination thereof. The ridge, hump or groove is usually on the side of the wheel to which the valve is located, which is usually the mounting flange or nave side of the wheel. Such wheels are often known as EVA (external valve aperture) or EVH (external valve hole) wheels. The apparatus of the present invention may be used on this type of commercial wheels, whereas the known types of apparatus often encounter problems. More specifically, the shape of the apertures provides primary location for the seal-breaking device or adaptor within the apparatus, especially with regard to pulling out of the front of the apparatus when the seal-breaking devices are under load. The shape of the apertures is also relevant in that the shape provides side-to-side location as well as fore-and-aft location.
- Also by way of example, it is mentioned that some wheels have a ridge on the side of the wheel away from the nave and the valve. Most types of known apparatus are unable to be used with such wheels. The apparatus of the present invention is able to be used with such wheels.
- Also by way of example, most articulated lorry trailer wheels have mounting flange positions inset, or on or near the centre line of the wheel. This causes problems with many known types of apparatus whereas there is no problem with the apparatus of the present invention.
- The apparatus of the present invention is advantageous in that it is usually able to be secured to the wheel without the need for fixing bolts.
- The apparatus of the present invention may be used with most common types of 8 or 10 stud mounted wheels, for example commercial wheels or wheels of other vehicles. The apparatus of the present invention may also be use with 6 stud mounted wheels.
- The apparatus of the present invention may be such that the seal-breaking device is connectable to the mounting frame at a similar depth with respect to the wheel rim and thus at a different depth with respect to the first connector means.
- The second connector means may comprises locator means which locates the seal-breaking device.
- The locator means may be plurality of spaced apart locator formations. The locator formations may be, for example, apertures or lugs. Other types of locator formations may be employed.
- The locator means may alternatively be a single locator formation. The locator formation may be, for example, an aperture or a lug. Other types of locator formation may be employed. With a single locator formation, a seal-breaking device with a threaded member of sufficient length may be employed to achieve the desired breaking of the seal. Alternatively, with a single locator formation, first connector adaptor means may be employed to provide different positions by which the relationship of the second connector means with the wheel rim is able to be maintained.
- The apparatus may be one in which the first connector means is a direct connection to the wheel. Alternatively, the apparatus may be one in which the first connector means is an indirect connection to the wheel, and in which the apparatus includes first adaptor means for providing the indirect connection. Various designs for the first adaptor means may be employed providing the required indirect connection is achieved.
- The apparatus may be one in which the second connector means provides a direct connection to the seal-breaking device. Alternatively, the apparatus may be one in which the second connector means provides an indirect connection to the seal-breaking device, and in which the apparatus includes second adaptor means for providing the indirect connection. Various designs for the second adaptor means may be employed providing the required indirect connection is achieved.
- When the second connector means is an indirect connection to the seal-breaking device, then the second connector means may be shaped to allow movement of the second adaptor means relative to the mounting frame so that unequal or point loads are able to be avoided or reduced during use of the apparatus. The second adaptor means may be a trunion plate assembly.
- The apparatus of the present invention may include a retaining member for retaining the second adaptor means in position. The retaining member may be a retaining bar or any other suitable and appropriate device.
- When the apparatus of the present invention is used with six stud mounting wheels, then the apparatus may advantageously include the first adaptor means for providing the indirect connection of the first connector means to the wheel. The first adaptor means may allow a range of attachment fittings to be accommodated. The use of the first adaptor means may also enable the apparatus of the invention to be used on other types of wheels, for example agricultural machine wheels, or other low pressure wheels, especially those having the above mentioned continuous ridge or hump around the wheel rim to retain the tyre bead seating.
- Preferably, the apertures are in-line apertures. Other layouts for the apertures may however be employed if desired.
- Preferably, the apparatus is one in which the mounting frame comprises a pair of spaced apart side plates, and in which a front edge of each side plate has the apertures.
- The side plates may be provided with holes for reducing the weight of the side plates.
- The mounting frame may have an open front which faces the wheel rim at the point where the seal is to be broken during use of the apparatus.
- The mounting frame may have a rear wall comprising a plurality of cross members, each cross member having a cross member formation which forms part of the second connector means. The cross member formation may comprise a slot for receiving an arm part of the seal-breaking device.
- The apparatus may include a retaining bar along an outer face of each one of the side plates, the retaining bar being for helping to retain the seal-breaking device in the apertures in the side plates. The retaining bar may also provide added strength for the apparatus.
- The apparatus of the present invention may be one in which the mounting frame is of other constructions to those mentioned above. Thus, for example, the frame may have side plates which are not provided with holes and/or a different type of rear wall may be employed. A solid construction may be employed in which case there would not be any side plates but simply sides of the mounting frame.
- The apparatus may be one in which the first connector means comprising a slot arrangement for receiving a wheel flange of the wheel.
- The slot arrangement may comprise a pair of slots provided in each of the side plates.
- The first connector means may include a transverse plate which extends between the side plates and which may locate with a wheel flange or is used as an attachment point or locator for a wheel flange, first connector means adaptors, spacers, or force transfer members. The first connector means adaptors may be provided with a hole or other suitable retaining means for securing the apparatus, a force transfer plate, or adaptors to the wheel flange.
- The apparatus of the present invention may include receiving means for receiving a force transfer member for transferring twisting forces generated during use of the apparatus. The force transfer member may be a force transfer plate. Other types of force transfer member may be employed.
- The receiving means may be one or more of holes, slots, lugs, notches, pins or other suitable and appropriate devices or formations.
- The apparatus of the invention may include the seal-breaking device. Any suitable and appropriate seal-breaking device may be employed, however powered.
- Preferably, the seal-breaking device comprises a threaded member which is manually operated in use of the apparatus, and a pressure plate at one end of the threaded member, the threaded member being such that when it is manually screwed through a mounting part of the seal-breaking device, then the pressure plate exerts pressure on the tyre bead and breaks the seal.
- The apparatus of the invention may include articulation control means. The articulation control means may be a bolt or a bi-directional thrust member and may act upon elements or parts of a force transfer frame which is flexibly located upon and is typically part of the second adaptor means.
- The apparatus of the invention may be one in which the mounting frame comprises two or more modular interconnectable sections.
- Embodiments of the invention will now be described solely by way of example and with reference to the accompanying drawings in which:
-
Figure 1 is a perspective view from the rear, above and one side of first apparatus of the invention, the apparatus comprising a mounting frame and a seal-breaking device; -
Figure 2 is a perspective view from the front and one side of second apparatus of the invention, the apparatus comprising a mounting frame which is like the mounting frame shown inFigure 1 but which has been modified; -
Figure 3 shows third apparatus of the invention, the apparatus being like the second apparatus ofFigure 2 but with alternative first connector means; -
Figure 4 is a perspective view from the front, one side and above of fourth apparatus of the present invention, the apparatus comprising the mounting frame shown inFigure 1 and a different make of seal-breaking device to that shown inFigure 1 ; and -
Figure 5 is a perspective view from the front, one side and above of fifth apparatus of the present invention, the apparatus comprising the mounting frame shown inFigure 1 , and a different type of seal-breaking device to that shown inFigure 1 . - Referring to
Figure 1 , there is shownapparatus 2 for breaking the seal between a tyre bead 4 of atyre 6 and awheel rim 8 of awheel 10. Theapparatus 2 comprises a mountingframe 12 for mounting a seal-breakingdevice 14. - The mounting
frame 12 comprises first connector means 16 for enabling the mountingframe 12 to be connected to thewheel 10. The mountingframe 12 also comprises second connector means 18 for enabling the seal-breakingdevice 14 to be connected to the mountingframe 12. - The second connector means 18 comprises a plurality of spaced apart apertures 20. Each
aperture 20 is for enabling the seal-breakingdevice 14 to be connected to the mountingframe 12 at a similar depth with respect to thewheel rim 8, and thus at a different depth with respect to the first connector means 16. This enables the correct location of the seal-breakingdevice 14 with respect to thewheel rim 8. This also allows the seal-breakingdevice 14 to break the seal by displacing the tyre bead 4 from thewheel rim 8 irrespective of differing wheel formations forming part of different types of wheel. Theapparatus 2 is thus able to take into account of the fact that wheels come in a variety of designs with various formations such for example a continuous ridge or hump around thewheel rim 8 to retain the tyre bead seating, or a ridge on the side of thewheel 10 away from the nave and the valve of thewheel 10, or mounting flange positions inset, or on or near a centre line of thewheel 10. Theapparatus 2 of the present invention is able to be used with wheels having these different formations, whereas many types of known apparatus are not suitable for wheels having one or more of the various types of formations such as those mentioned above. - The first connector means 16 is most clearly shown in
Figure 2 . The first connector means 16 is a direct connection to thewheel 10. In an alternative embodiment of the invention (not shown) the first connector means 16 may be an indirect connection to thewheel 10, in which case theapparatus 2 may include first adaptor means for providing the indirect connection. - As shown in
Figure 1 , the second connector means 18 provides an indirect connection to the seal-breakingdevice 14. In an alternative embodiment of the invention, the second connector means may provide a direct connection to the seal-breakingdevice 14, in which case theapparatus 2 may include second adaptor means for providing the indirect connection. The second connector means may then advantageously be shaped to allow movement of the second adaptor means relative to the mountingframe 12, so that unequal or point loads are able to be avoided or reduced during use of theapparatus 2. The second adaptor means may be a trunion plate assembly or any other suitable and appropriate device. - Where the
apparatus 2 includes the second adaptor means, then a retaining member may be employed for retaining the second adaptor means in position. The retaining member may be a retaining bar or any other suitable and appropriate device. - As can be seen from
Figures 1 and2 , theapertures 20 are in-line apertures 20. The mounting frame comprises a pair of spaced apartside plates front edge 26 of eachside plate apertures 20. Theside plates holes 28 for reducing the weight of the side plates, 22, 24. Theholes 28 may be omitted in an alternative design of theapparatus 2. - The
apertures 20 are shaped as shown so that they have aneck part 30 which opens out into alarger part 32. Thelarger part 32 has a substantially flatlower edge 34 and a curvedupper edge 36. - The mounting
frame 12 has anopen front 38 which faces thewheel rim 8 at the point where the seal is to be broken during use of theapparatus 2. - The mounting
frame 12 has arear wall 40 comprising a plurality ofcross members 42. Eachcross member 42 has aformation 44 which forms part of the second connector means 18. Thecross members 42 receive the counter-force set up by the seal-breakingdevice 14 when the apparatus of the invention is in use. Thecross members 42 form structural elements. Also, thecross members 42 take the counter-force generated by the seal-breakingdevice 14, as well as providing a visible second securing point for the seal-breakingdevice 14 and adaptors. Preferably, the numbers ofcross members 42 is at least as many as there are sets ofapertures 20. - As shown in
Figures 1 and2 , theformation 44 comprises aslot 46 for receiving anarm part 48 of the seal-breakingdevice 14, or a second adaptor. Thearm part 48 is held in position by apin 50 as shown inFigure 1 . Thearm part 48 may be part of a second adaptor means in the form of a trunion assembly. -
Figure 2 shows a mountingframe 52 which is the same as the mountingframe 12 except that the mountingframe 52 is provided with a retainingbar 54 along anouter face 56 of each one of theside plates - As best seen from
Figure 2 , the first connector means 16 comprises aslot arrangement 58 comprising a pair ofslots side plates transverse plate 64 which extends between theside plates transverse plate 64 has anaperture 66 for securing the apparatus, a force transfer plate, or adaptor to be the wheel flange. The slotted-type first connector means 16 is ideal for use on 8 - 10 stud commercial vehicle wheels. -
Figure 1 shows theapparatus 2 having a seal-breakingdevice 14 comprising a threadedmember 68 which is manually operated by means of anut 70 and an appropriate spanner or other turning device (not shown). The seal-breakingdevice 14 has apressure plate 72 at an end of the threadedmember 78 opposite thenut 70. Thepressure plate 72 is pivotally mounted by apivot 74. The threadedmember 68 screws through a threadedaperture 76 in abar 78 which extends between a pair ofside plates bar 84 helps to keep theside plates - Each side of the seal-breaking
device 14 is provided with a crescent-shapedmember 86 which locates in itsappropriate aperture 20 as shown inFigure 1 . The seal-breakingdevice 14 is securely located by themembers 14 to the mountingframe 12 as pressure is exerted by thepressure plate 22 in order to break the seal between the tyre bead 4 and thewheel rim 8. This pressure increases as the threadedmember 68 is screwed through thebar 78. -
Figure 3 shows theapparatus 52 ofFigure 2 but with the first connector means 16 removed and replaced bylugs 85 withholes 87. Thelugs 85 and theholes 87 are for receiving adaptor means. -
Figure 4 shows the mountingframe 12 ofFigure 1 with a seal-breakingdevice 88 which is a known seal breaking device. This illustrates the versatility of the mountingframe 12. Theseal breaking device 88 has a threadedmember 90 which screws through a threadedaperture 92 in abar 94. Thebar 94 extends betweenside plates side plates apertures 100 for lightening the weight of theside plates device 88. Theside plates bar 102. The threadedmember 90 has anaperture 104 for receiving abar 106 which enables the threadedmember 90 manually to be screwed into and out of the threadedaperture 92 in thebar 94. - The threaded
member 90 terminates at its end remote from theaperture 104 in apressure plate 108 which is more curved than thepressure plate 72 in the seal-breakingdevice 14. -
Figure 5 shows the mountingframe 12 provided with a seal-breakingdevice 110. The seal-breakingdevice 110 has a threadedmember 112 having anut 114 at one end for enabling the threadedmember 112 manually to be screwed through a threadedaperture 116 in aradially extending bar 118. The threadedmember 112 applies force to apressure plate 128 and tyre bead. Thebar 118 is located on aplate 120 by ahand nut 122 being screwed over a threadedmember 124. Acaptive bolt 126 or similar is used to control the arc of theplate 120 and themember 86 within the slot oraperture 20 by reacting with aforce transfer frame 127. Thus, thebolt 126 or a similar bi-directional thrust member acts to provide articulation control, and may typically be part of the second adaptor means. This type of seal-breakingdevice 110 has no inherent facility to adjust the angle of presentation or to follow the tapered wheel profile. This type of seal-breakingdevice 110 may benefit from angle adjustments provided by thecaptive bolt 126 acting on a connector bar bridging force transfer claws on theforce transfer frame 127. - It is to be appreciated that the embodiments of the invention described above with reference to the accompanying drawings have been given by way of example and that modifications may be effected. Thus, for example, the apparatus as shown in the drawings may include receiving means for receiving a force transfer member for transferring twisting forces generated during use of the apparatus. The force transfer member may be a force transfer plate. The receiving means may be one or more of holes, slots, lugs, notches or pins. If desired, the apparatus of the invention may have only one locator formation, for example one locator aperture or lug. If this locator formation is at the position of the locator aperture which is shown in the drawings and which is furthest from the first connector means, then the seal-breaking device shown in the drawings can be used but with a longer threaded member than the illustrated threaded
members
Claims (35)
- Apparatus for breaking the seal between a tyre bead of a tyre and a wheel rim of a wheel, which apparatus comprises a mounting frame for mounting a seal-breaking device, the mounting frame comprising first connector means for enabling the mounting frame to be connected to the wheel, and second connector means for enabling the seal-breaking device to be connected to the mounting frame, and the apparatus being such that the seal-breaking device is connectable to the mounting frame such as correctly to locate the seal-breaking device with respect to the wheel rim and allow the seal-breaking device to break the seal by displacing the tyre bead from the wheel rim irrespective of differing wheel formations forming part of different types of wheel.
- Apparatus according to claim 1 in which the apparatus is such that the seal-breaking device is connectable to the mounting frame at a similar depth with respect to the wheel rim and thus at a different depth with respect to the first connector means.
- Apparatus according to claim 1 or claim 2 in which the second connector means comprises locator means which locates the seal-breaking device.
- Apparatus according to claim 3 in which the locator means is a plurality of spaced apart locator formations
- Apparatus according to claim 4 in which the locator formations are apertures.
- Apparatus according to claim 4 in which the locator formations are lugs.
- Apparatus according to claim 3 in which the locator means is a single locator formation.
- Apparatus according to claim 7 in which the locator formation is an aperture.
- Apparatus according to claim 7 in which the locator formation is a lug.
- Apparatus according to any one of the preceding claims in which the first connector means is a direct connection to the wheel.
- Apparatus according to any one of claims 1 - 9 in which the first connector means is an indirect connection to the wheel, and in which the apparatus includes first adaptor means for providing the indirect connection.
- Apparatus according to any one of the preceding claims in which the second connector means provides a direct connection to the seal-breaking device.
- Apparatus according to any one of claims 1-11 in which the second connector means provides an indirect connection to the seal-breaking device, and in which the apparatus includes second adaptor means for providing the indirect connection.
- Apparatus according to claim 13 in which the second connector means is shaped to allow movement of the second adaptor means relative to the mounting frame so that unequal or point loads are able to be avoided or reduced during use of the apparatus.
- Apparatus according to claim 13 or claim 14 in which the second adaptor means is a trunion plate assembly.
- Apparatus according to any one of claims 13-15 and including a retainer member for retaining the second adaptor means in position.
- Apparatus according to claim 16 in which the retaining member is a retaining bar.
- Apparatus according to claim 5 in which the apertures are in-line apertures.
- Apparatus according to any one of the preceding claims in which the mounting frame comprises a pair of spaced apart side plates, and in which a front edge of each side plate has the apertures.
- Apparatus according to claim 19 in which the side plates are provided with holes for reducing the weight of the side plates.
- Apparatus according to claim 19 or claim 20 in which the mounting frame has an open front which faces the wheel rim at the point where the seal is to be broken during use of the apparatus.
- Apparatus according to any one of claims 19-21 in which the mounting frame has a rear wall comprising a plurality of cross members, and in which each cross member has a cross member formation which forms part of the second connector means.
- Apparatus according to claim 22 in which the cross member formation comprises a slot for receiving an arm part of the seal-breaking device.
- Apparatus according to any one of claims 19 - 23 and including a retaining bar along an outer face of each one of the side plates, the retaining bar being for helping to retain the seal-breaking device in the apertures in the side plates.
- Apparatus according to any one of the preceding claims in which the first connector means comprises a slot arrangement for receiving a wheel flange of the wheel.
- Apparatus according to claim 25 in which the slot arrangement comprises a pair of slots provided one in each of the side plates.
- Apparatus according to any one of claims 19 - 26 in which the first connector means includes a transverse plate which extends between the side plates.
- Apparatus according to claim 27 in which the transverse plate has an aperture.
- Apparatus according to any one of the preceding claims and including receiving means for receiving a force transfer member for transferring twisting forces generated during use of the apparatus.
- Apparatus according to claim 29 in which the force transfer member is a force transfer plate.
- Apparatus according to claim 29 or claim 30 in which the receiving means are one or more of holes, slots, lugs, notches or pins.
- Apparatus according to any one of the preceding claims and including the seal-breaking device.
- Apparatus according to claim 32 in which the seal-breaking device comprises a threaded member which is manually operated in use of the apparatus, and a pressure plate at one end of the threaded member, the threaded member being such that when it is manually screwed through a mounting part of the seal-breaking device, then the pressure plate exerts pressure on the tyre bead and breaks the seal.
- Apparatus according to any one of the preceding claims and including articulation control means.
- Apparatus according to any one of the preceding claims in which the mounting frame comprises two or more modular interconnectable sections.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07254624T PL1927482T3 (en) | 2006-11-30 | 2007-11-29 | Apparatus for breaking the seal between a tyre bead of a tyre and a wheel rim of a wheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0623967.7A GB0623967D0 (en) | 2006-11-30 | 2006-11-30 | Apparatus for breaking the seal between a tyre and a wheel rim |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1927482A1 true EP1927482A1 (en) | 2008-06-04 |
EP1927482B1 EP1927482B1 (en) | 2010-08-25 |
Family
ID=37671637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07254624A Active EP1927482B1 (en) | 2006-11-30 | 2007-11-29 | Apparatus for breaking the seal between a tyre bead of a tyre and a wheel rim of a wheel |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1927482B1 (en) |
AT (1) | ATE478775T1 (en) |
DE (1) | DE602007008666D1 (en) |
DK (1) | DK1927482T3 (en) |
ES (1) | ES2351767T3 (en) |
GB (1) | GB0623967D0 (en) |
PL (1) | PL1927482T3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104827835A (en) * | 2014-02-07 | 2015-08-12 | 西卡姆有限公司 | Tyre-changing machine |
US20170050479A1 (en) * | 2014-05-07 | 2017-02-23 | Gino Ferrari | A de-beading device for tire-changing machines |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1094919A (en) | 1966-07-05 | 1967-12-13 | Maerkisches Werk Gmbh | A portable apparatus for changing tyres of motor vehicle wheels with a detachable rim flange |
GB2350590A (en) | 1999-06-01 | 2000-12-06 | Guy Roger Haffenden | Device for displacing a tyre bead from a wheel rim |
-
2006
- 2006-11-30 GB GBGB0623967.7A patent/GB0623967D0/en not_active Ceased
-
2007
- 2007-11-29 PL PL07254624T patent/PL1927482T3/en unknown
- 2007-11-29 EP EP07254624A patent/EP1927482B1/en active Active
- 2007-11-29 AT AT07254624T patent/ATE478775T1/en not_active IP Right Cessation
- 2007-11-29 ES ES07254624T patent/ES2351767T3/en active Active
- 2007-11-29 DK DK07254624.5T patent/DK1927482T3/en active
- 2007-11-29 DE DE602007008666T patent/DE602007008666D1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1094919A (en) | 1966-07-05 | 1967-12-13 | Maerkisches Werk Gmbh | A portable apparatus for changing tyres of motor vehicle wheels with a detachable rim flange |
GB2350590A (en) | 1999-06-01 | 2000-12-06 | Guy Roger Haffenden | Device for displacing a tyre bead from a wheel rim |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104827835A (en) * | 2014-02-07 | 2015-08-12 | 西卡姆有限公司 | Tyre-changing machine |
US20170050479A1 (en) * | 2014-05-07 | 2017-02-23 | Gino Ferrari | A de-beading device for tire-changing machines |
US9873298B2 (en) * | 2014-05-07 | 2018-01-23 | Gino Ferrari | De-beading device for tire-changing machines |
Also Published As
Publication number | Publication date |
---|---|
DE602007008666D1 (en) | 2010-10-07 |
EP1927482B1 (en) | 2010-08-25 |
GB0623967D0 (en) | 2007-01-10 |
DK1927482T3 (en) | 2010-12-13 |
ATE478775T1 (en) | 2010-09-15 |
ES2351767T3 (en) | 2011-02-10 |
PL1927482T3 (en) | 2011-01-31 |
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